A pair of WWII tripod mounted 20 x 120 binoculars made by TOKO for the Imperial Japanese Navy, circa 1942.

TOKO (Tokyo Kogaku) the Tokyo Optical Company founded in 1932.

Literature: Militärische Ferngläser und Fernrohre in Heer, Luftwaffe und Marine: Military binoculars and telescopes in Army, Air Force, and Navy / Hans Seeger. Page: 270 - 271.